error at ::0 formal unbound in pointcut 报错

以下是错误代码：

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'atithmeticCalculatorImpl' defined in file [D:\EclipseWorkspace\spring-2\bin\com\ltj\spring\aop\impl\AtithmeticCalculatorImpl.class]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut 

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)

at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)

以下是的切面中的代码：

@Aspect
@Component
public class LogginAspect {
/**
* 定义一个方法，用于声明切面表达式，一般地，该方法中不再需要添加其他的代码
* 
*/
@Pointcut("execution(public int com.ltj.spring.aop.impl.AtithmeticCalculatorImpl.*(..))")
public void declareJoinPointExpression() {
}


@Before("declareJoinPointExpression()")
public void beforeMethed(JoinPoint joinPoint) {
String methedName = joinPoint.getSignature().getName();
List<Object> args = Arrays.asList(joinPoint.getArgs());
System.out.println("The methed " + methedName + " begins with " + args);
}


@After("declareJoinPointExpression()")
public void afterMethed(JoinPoint joinPoint) {
String methedName = joinPoint.getSignature().getName();
System.out.println("The methed " + methedName + " ends");
}


@AfterReturning(value = "declareJoinPointExpression()")
public void afterReturning(JoinPoint joinPoint, Object result) {
String methedName = joinPoint.getSignature().getName();
System.out.println("The methed " + methedName + " ends with " + result);
}
最后发现这里有问题，把它改为以下就没有问题了
@AfterReturning(value = "declareJoinPointExpression()", returning = "result")//这行里少了returning = "result"这个参数，加上就可以以了
public void afterReturning(JoinPoint joinPoint, Object result) {
String methedName = joinPoint.getSignature().getName();
System.out.println("The methed " + methedName + " ends with " + result);
}


@AfterThrowing(value = "declareJoinPointExpression()", throwing = "ex")
public void afterThrowin(JoinPoint joinPoint, Exception ex) {
String methedName = joinPoint.getSignature().getName();
System.out.println("The methed " + methedName + "eccurs exception "
+ ex);


}